🏷️ Basic Information

Make:

Yamaha

Model:

TTR250L / TTR250C

Model Variant:

L (Dual Sport/Enduro), C (Competition)

Model Codes:

TTR250L, TTR250C

👋 Introduction

Vehicle Segment:

Dual-sport/Enduro motorcycle

Target Audience:

Off-road enthusiasts, trail riders, and dual-sport riders seeking a reliable and capable machine.

Key Competitors:

Honda XR250R/L, Kawasaki KLX250S, Suzuki DR-Z250

Engine Type:

Four-stroke, air-cooled, SOHC

Durability:

Known for Yamaha's reputation for robust engineering and reliability.

Versatility:

Capable of both trail riding and street legal use (depending on configuration and local laws).

📋 Manual Details

Covered Years:

1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006

Estimated Page Count:

300-400 pages (estimated for a comprehensive workshop manual)

Manual Type:

Workshop Repair Service Manual

Language:

English

Format:

PDF Download

📖 Manual Coverage

Engine:

Top-end (cylinder head, valves, camshaft), Bottom-end (crankshaft, connecting rod, pistons), Lubrication system, Cooling system (if applicable), Fuel injection/Carburetor system, Ignition system, Starting system, Exhaust system

Transmission:

Gearbox (shifting mechanisms, gears, bearings), Clutch (operation, adjustment, replacement), Final drive (chain, sprockets)

Chassis And Suspension:

Frame, Forks (front suspension - damping, springs, seals), Rear shock absorber (rear suspension - adjustment, rebuilding), Swingarm, Linkages, Bearings (steering head, wheel, swingarm)

Brakes:

Front brake system (caliper, master cylinder, lines, pads, discs), Rear brake system (caliper, master cylinder, lines, pads, discs), Bleeding procedures, Brake fluid specifications

Electrical System:

Wiring diagrams, Lighting system (headlight, taillight, signals), Charging system (stator, rectifier/regulator), Battery, Ignition control unit (CDI/ECU), Ignition timing, Switches, Fuses, Troubleshooting electrical faults

Bodywork And Controls:

Seat, Fuel tank, Fenders, Handlebars, Levers, Cables (throttle, clutch), Footpegs, Seat mounting, Decals and graphics

Routine Maintenance:

Oil change intervals and procedures, Oil filter replacement, Air filter cleaning/replacement, Spark plug inspection/replacement, Chain adjustment and lubrication, Brake pad wear checks, Tire pressure checks, Cable adjustments (throttle, clutch)

Troubleshooting:

Diagnostic flowcharts, Common symptom identification, Root cause analysis for engine performance issues, electrical faults, braking problems, suspension behavior

Major Repairs:

Engine disassembly and reassembly (top-end and bottom-end), Transmission overhaul, Carburetor/Fuel injection system rebuild, Fork seal replacement, Rear shock absorber service, Brake caliper rebuilding, Wheel bearing replacement

Specifications And Data:

Torque specifications for all fasteners, Valve clearance specifications, Piston ring gap, Cylinder bore specifications, Carburetor jet sizes, Ignition timing specifications, Fluid capacities and types

Depth:

Comprehensive from basic owner maintenance to full engine and transmission rebuilds, including electrical system diagnostics and component-level repairs. Designed for both novice mechanics and experienced technicians.

📊 Manual Specifications

File Type:

PDF (Portable Document Format)

Searchability:

Likely text-searchable for easy navigation and quick access to specific information.

Print Compatibility:

Designed for digital viewing and can be printed for on-hand reference.

Digital Binding:

N/A (Digital download)

Digital Paper Type:

N/A (Digital download)

⚙️ Engine Specifications

Engine Type:

249cc, 4-stroke, SOHC, 2-valve

Cooling System:

Air-cooled

Bore X Stroke:

73.0 mm x 59.6 mm (typical for this engine family)

Compression Ratio:

10.2:1 (typical)

Horsepower:

~20-25 HP (estimated, varies by market and tuning)

Torque:

~18-20 Nm (estimated)

Fuel Delivery:

Carburetor (likely Mikuni VM34 or similar for earlier models, potentially EFI on later 'L' models if introduced, though manual specifies carb)

Carburetor Size:

34 mm (typical for this class)

Valvetrain:

SOHC with 2 valves per cylinder. Manual will detail valve clearance checks and adjustment procedures.

🔧 Transmission

Transmission Type:

Constant mesh 6-speed sequential

Optional Gearboxes:

N/A

Clutch Type:

Wet, multi-disc

Final Drive:

Chain drive

📐 Dimensions

Length:

Approx. 2170 mm (varies slightly by model variant)

Width:

Approx. 800 mm

Height:

Approx. 1180 mm

Wheelbase:

Approx. 1440 mm

Dry Weight:

Approx. 117 kg

Wet Weight:

Approx. 124 kg (estimated with fluids)

Fuel Tank Capacity:

10 Liters (2.6 US gallons)

🛡️ Safety Features

Safety Certification:

N/A (Motorcycle, not subject to automotive crash ratings)

Braking System:

Hydraulic disc brakes front and rear

Lighting:

Headlight, Taillight, Brake light, Front/Rear indicators (on 'L' model)

Frame Construction:

Steel semi-double cradle frame for rigidity and durability.

💡 Technology Features

Infotainment Features:

N/A (Basic motorcycle instrumentation: speedometer, odometer, trip meter, neutral indicator, high beam indicator).

Assistance Systems:

N/A (No electronic rider aids like ABS or traction control).

Connectivity Options:

N/A

🔧 Maintenance

Engine Oil Change:

Every 3,000 km or 6 months (typical for this era, consult manual for exact spec).

Oil Filter Change:

With every oil change (typical).

Air Filter Cleaning:

Every 1,000 km or as needed based on riding conditions.

Valve Clearance Check:

Every 10,000 km (typical, consult manual for exact spec).

Engine Oil Type:

Yamalube 4 (or equivalent) SAE 10W-40 API SG or higher motorcycle oil.

Engine Oil Capacity:

1.80 L (with oil filter replacement).

Brake Fluid Type:

DOT 3 or DOT 4 hydraulic brake fluid.

Fork Oil Type:

Yamaha Fork Oil 10W (or equivalent).

Fork Oil Capacity:

Approx. 360 ml per fork leg (check manual for precise amount).

Common Wear Items:

Clutch plates (due to heavy use in off-road conditions), wheel bearings, steering head bearings, fork seals.

Carburetor Tuning:

May require periodic cleaning and adjustment, especially if exposed to dirty conditions or varying altitudes.

Electrical Connections:

Corrosion in electrical connectors can occur with exposure to moisture, requiring cleaning and dielectric grease.

📚 Vehicle History

Manufacturer:

Yamaha Motor Company, a globally recognized leader in motorcycles and powersports.

Predecessors:

Yamaha TT-R series models, building upon the legacy of dual-sport and enduro bikes.

Updates During Period:

Minor revisions likely occurred between 1999-2006, but the core platform remained consistent. The manual covers the entire span, indicating continuity.

Production Period:

Covered models manufactured from 1999 to 2006.

🏆 Awards & Recognition

Awards And Reviews:

While specific awards are rare for individual model years, the TTR250 lineage is generally praised for its reliability, off-road capability, and value in the dual-sport category.

User Satisfaction:

Consistently high user satisfaction due to its robust nature and ease of maintenance.

Emissions Certification:

Compliant with relevant emissions standards for its model years.